--- np2/bios/bios.c	2003/12/10 13:52:57	1.13
+++ np2/bios/bios.c	2004/01/24 18:20:06	1.32
@@ -1,13 +1,11 @@
 #include	"compiler.h"
 #include	"dosio.h"
 #include	"cpucore.h"
-#include	"memory.h"
 #include	"pccore.h"
 #include	"iocore.h"
 #include	"bios.h"
 #include	"biosmem.h"
-#include	"sound.h"
-#include	"fmboard.h"
+#include	"sxsibios.h"
 #include	"lio.h"
 #include	"fddfile.h"
 #include	"fdd_mtr.h"
@@ -15,8 +13,11 @@
 #include	"keytable.res"
 #include	"itfrom.res"
 #include	"startup.res"
+#include	"biosboot.res"
 
 
+#define	BIOS_SIMULATE
+
 	BOOL	biosrom = FALSE;
 
 static const char file_biosrom[] = "bios.rom";
@@ -33,9 +34,34 @@ static void bios_reinitbyswitch(void) {
 	BYTE	prxdupd;
 	BYTE	biosflag;
 	BYTE	ext_mem;
+	UINT8	boot;
+
+#if defined(CPUCORE_IA32)
+	UINT16	org_cs;
+	UINT16	org_ip;
+
+	org_cs = CPU_CS;
+	org_ip = CPU_IP;
+	CPU_SHUT();
+	CPU_CS = org_cs;
+	CPU_IP = org_ip;
+	SETBIOSMEM16(0x00486, CPU_DX);
+#endif
+
+	if (!(np2cfg.dipsw[2] & 0x80)) {
+#if defined(CPUCORE_IA32)
+		mem[MEMB_SYS_TYPE] = 0x03;		// 80386〜
+#else
+		mem[MEMB_SYS_TYPE] = 0x01;		// 80286
+#endif
+	}
+	else {
+		mem[MEMB_SYS_TYPE] = 0x00;		// V30
+	}
 
+	mem[MEMB_BIOS_FLAG0] = 0x01;
 	CPU_TYPE = 0;
-	prxcrt = 0xc8;
+	prxcrt = 0x48;								// ver0.74
 	if (gdc.display & 2) {
 		prxcrt |= 0x04;							// color16
 	}
@@ -57,7 +83,7 @@ static void bios_reinitbyswitch(void) {
 	mem[MEMB_PRXDUPD] = prxdupd;
 
 	biosflag = 0x20;
-	if (pc.cpumode & CPUMODE_8MHz) {
+	if (pccore.cpumode & CPUMODE_8MHz) {
 		biosflag |= 0x80;
 	}
 	biosflag |= mem[0xa3fea] & 7;
@@ -72,7 +98,7 @@ static void bios_reinitbyswitch(void) {
 	if (extmem_init(ext_mem)) {										// ver0.28
 		ext_mem = 0;							// メモリ確保に失敗
 	}
-	mem[MEMB_BIOS_FLAG] = biosflag;
+	mem[MEMB_BIOS_FLAG1] = biosflag;
 	mem[MEMB_EXPMMSZ] = (BYTE)(ext_mem << 3);
 	mem[MEMB_CRT_RASTER] = 0x0f;
 
@@ -82,10 +108,32 @@ static void bios_reinitbyswitch(void) {
 	}
 	gdcs.textdisp |= GDCSCRN_EXT;
 
-	if ((pc.model >= PCMODEL_VX) && (usesound & 0x7e)) {
+	if (((pccore.model & PCMODELMASK) >= PCMODEL_VX) &&
+		(pccore.sound & 0x7e)) {
 		iocore_out8(0x188, 0x27);
 		iocore_out8(0x18a, 0x3f);
 	}
+
+	// FDD initialize
+	SETBIOSMEM32(MEMD_F2DD_POINTER, 0xfd801ad7);
+	SETBIOSMEM32(MEMD_F2HD_POINTER, 0xfd801aaf);
+	boot = mem[MEMB_MSW5] & 0xf0;
+	if (boot != 0x20) {		// 1MB
+		fddbios_equip(DISKTYPE_2HD, TRUE);
+		mem[MEMB_BIOS_FLAG0] |= 0x02;
+	}
+	else {					// 640KB
+		fddbios_equip(DISKTYPE_2DD, TRUE);
+		mem[MEMB_BIOS_FLAG0] &= ~0x02;
+	}
+	mem[MEMB_F2DD_MODE] = 0xff;
+
+	// IDE initialize
+	if (pccore.hddif & PCHDD_IDE) {
+		mem[MEMB_SYS_TYPE] |= 0x80;		// IDE
+		CPU_AX = 0x8300;
+		sasibios_operate();
+	}
 }
 
 static void bios_vectorset(void) {									// ver0.30
@@ -102,6 +150,17 @@ static void bios_vectorset(void) {						
 	SETBIOSMEM32(0x1e*4, 0xe8000000);
 }
 
+static void bios_screeninit(void) {
+
+	UINT	ax;
+
+	ax = 0x0a04;
+	ax += (np2cfg.dipsw[1] & 0x04) >> 1;
+	ax += (np2cfg.dipsw[1] & 0x08) >> 3;
+	CPU_AX = ax;
+	bios0x18();
+}
+
 
 // CDSで見てる為、変更…(涙
 static const UINT16 biosoffset[0x20] = {
@@ -133,6 +192,7 @@ void bios_init(void) {
 	fh = file_open_rb(path);
 	if (fh != FILEH_INVALID) {
 		if (file_read(fh, mem + 0x0e8000, 0x18000) == 0x18000) {
+			TRACEOUT(("load bios.rom"));
 			biosrom = TRUE;
 		}
 		file_close(fh);
@@ -141,6 +201,7 @@ void bios_init(void) {
 		CopyMemory(mem + 0x0e8000, nosyscode, sizeof(nosyscode));
 	}
 
+#if defined(BIOS_SIMULATE)
 	// BIOS hookのアドレス変更
 	for (i=0; i<0x20; i++) {
 		STOREINTELWORD(mem + 0xfd868 + i*2, biosoffset[i]);
@@ -162,36 +223,18 @@ void bios_init(void) {
 	for (i=0; i<8; i+=2) {
 		STOREINTELWORD(mem + 0xfd800 + 0x1aaf + i, 0x1ab7);
 		STOREINTELWORD(mem + 0xfd800 + 0x1ad7 + i, 0x1adf);
-		STOREINTELWORD(mem + 0xfd800 + 0x2361 + i, 0x1980);			// ver0.31
+		STOREINTELWORD(mem + 0xfd800 + 0x2361 + i, 0x1980);
 	}
 	CopyMemory(mem + 0xfd800 + 0x1ab7, fdfmt2hd, sizeof(fdfmt2hd));
 	CopyMemory(mem + 0xfd800 + 0x1adf, fdfmt2dd, sizeof(fdfmt2dd));
-	CopyMemory(mem + 0xfd800 + 0x1980, fdfmt144, sizeof(fdfmt144));	// ver0.31
+	CopyMemory(mem + 0xfd800 + 0x1980, fdfmt144, sizeof(fdfmt144));
 
 	SETBIOSMEM16(0xfffe8, 0xcb90);
 	SETBIOSMEM16(0xfffec, 0xcb90);
 	mem[0xffff0] = 0xea;
 	STOREINTELDWORD(mem + 0xffff1, 0xfd800000);
 
-#if 1
-	CopyMemory(mem + ITF_ADRS, itfrom, sizeof(itfrom));
-	mem[ITF_ADRS + 0x7ff0] = 0xea;
-	STOREINTELDWORD(mem + ITF_ADRS + 0x7ff1, 0xf8000000);
-#if 0
-fh = file_create("itf.rom");
-if (fh != FILEH_INVALID) {
-	file_write(fh, itfrom, sizeof(itfrom));
-	file_close(fh);
-}
-#endif
-#else
-	fh = file_open_c("itf.rom");
-	if (fh != FILEH_INVALID) {
-		file_read(fh, &mem[ITF_ADRS], 0x8000);
-		file_close(fh);
-	}
-#endif
-	if (!biosrom) {
+	if ((!biosrom) && (!(pccore.model & PCMODEL_EPSON))) {
 		CopyMemory(mem + 0xe8dd8, neccheck, 0x25);
 		pos = LOADINTELWORD(itfrom + 2);
 		CopyMemory(mem + 0xf538e, itfrom + pos, 0x27);
@@ -199,15 +242,37 @@ if (fh != FILEH_INVALID) {
 
 	bios_reinitbyswitch();
 	mem[MEMB_CRT_STS_FLAG] = 0x84;
-	mem[MEMB_BIOS_FLAG0] = 0x03;						// 00/05/17 beep tone
-	mem[MEMB_F2DD_MODE] = 0xff;										// ver0.29
- 	SETBIOSMEM16(MEMW_DISK_EQUIP, 0x0003);							// ver0.29
-	SETBIOSMEM32(MEMD_F2DD_POINTER, 0xfd801ad7);
-	SETBIOSMEM32(MEMD_F2HD_POINTER, 0xfd801aaf);
+//	mem[MEMB_BIOS_FLAG0] = 0x03;
+//	mem[MEMB_F2DD_MODE] = 0xff;										// ver0.29
+// 	SETBIOSMEM16(MEMW_DISK_EQUIP, 0x0003);							// ver0.29
 	mem[0x005ae] |= 0x03;											// ver0.31
 
 	CopyMemory(mem + 0x0fde00, keytable[0], 0x300);
 	bios0x09_init();
+
+	CopyMemory(mem + ITF_ADRS, itfrom, sizeof(itfrom));
+	mem[ITF_ADRS + 0x7ff0] = 0xea;
+	STOREINTELDWORD(mem + ITF_ADRS + 0x7ff1, 0xf8000000);
+	if (pccore.model & PCMODEL_EPSON) {
+		mem[ITF_ADRS + 0x7ff1] = 0x04;
+	}
+	else if ((pccore.model & PCMODELMASK) == PCMODEL_VM) {
+		mem[ITF_ADRS + 0x7ff1] = 0x08;
+	}
+
+	CopyMemory(mem + 0xfd800 + 0x2400, biosboot, sizeof(biosboot));
+#else
+	fh = file_open_c("itf.rom");
+	if (fh != FILEH_INVALID) {
+		file_read(fh, mem + ITF_ADRS, 0x8000);
+		file_close(fh);
+		TRACEOUT(("load itf.rom"));
+	}
+	extmem_init(np2cfg.EXTMEM);
+#endif
+
+	CopyMemory(mem + 0x1c0000, mem + ITF_ADRS, 0x08000);
+	CopyMemory(mem + 0x1e8000, mem + 0x0e8000, 0x10000);
 }
 
 static void bios_boot(void) {
@@ -229,6 +294,7 @@ static void bios_boot(void) {
 	else {
 		CPU_SP = GETBIOSMEM16(0x00404);
 		CPU_SS = GETBIOSMEM16(0x00406);
+//		TRACEOUT(("CPU Reset... SS:SP = %.4x:%.4x", CPU_SS, CPU_SP));
 	}
 }
 
@@ -238,9 +304,13 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 	UINT16	bootseg;
 
 	if ((CPU_ITFBANK) && (adrs >= 0xf8000) && (adrs < 0x100000)) {
+#if 1					// for epson ITF
+		return(0);
+#else
 		CPU_IP--;
 		CPU_REMCLOCK = -1;
 		return(1);
+#endif
 	}
 
 	switch(adrs) {													// ver0.30
@@ -302,6 +372,7 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 			return(1);
 
 		case BIOS_BASE + BIOSOFST_1b:
+			CPU_STI;
 			CPU_REMCLOCK -= 200;
 			bios0x1b();
 			return(1);
@@ -344,8 +415,13 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 			return(1);
 
 		case 0xfd802:					// ブート
-			bios_reinitbyswitch();									// ver0.27
-			bios_vectorset();										// ver0.29
+			bios_reinitbyswitch();
+			bios_vectorset();
+			bios_screeninit();
+#if 1																// ver0.73
+			CPU_CS = 0xfd80;			// SASI/SCSIリセット
+			CPU_IP = 0x2400;
+#else
 			bootseg = bootstrapload();
 			CPU_STI;
 			CPU_CS = (bootseg != 0)?bootseg:0xe800;
@@ -353,6 +429,7 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 			CPU_SS = 0x0030;
 			CPU_SP = 0x00e6;
 			CPU_IP = 0x0000;
+#endif
 			return(1);
 
 		case 0xfffe8:					// ブートストラップロード
@@ -362,8 +439,6 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 				CPU_STI;
 				CPU_CS = bootseg;
 				CPU_IP = 0x0000;
-				CPU_SS = 0x0030;
-				CPU_SP = 0x00e6;
 				return(1);
 			}
 			return(0);